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fix(db): pass mode to drizzle for mysql #730

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Merged
atinux merged 1 commit into from
Dec 17, 2025
Merged

fix(db): pass mode to drizzle for mysql #730

atinux merged 1 commit into from
Dec 17, 2025

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@onmax
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@onmax onmax commented Dec 17, 2025 •
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Fixes #727

Problem

MySQL drizzle requires mode: 'default' | 'planetscale' when using schema with relational queries. The config option was being ignored.

Generated code before:

const db = drizzle({ connection: {...}, schema })

Generated code after:

const db = drizzle({ connection: {...}, schema, mode: 'default' })

Reproduction

git clone --depth 1 --filter=blob:none --sparse https://github.com/onmax/repros.git
cd repros && git sparse-checkout set nuxthub-727
cd nuxthub-727 && MYSQL_URL="mysql://test:test@localhost/test" pnpm install && MYSQL_URL="mysql://test:test@localhost/test" pnpm nuxi prepare

# Check .nuxt/hub/db.mjs - missing mode parameter
cat .nuxt/hub/db.mjs

Verify fix

cd repros && git sparse-checkout add nuxthub-727-fixed
cd nuxthub-727-fixed && MYSQL_URL="mysql://test:test@localhost/test" pnpm install && MYSQL_URL="mysql://test:test@localhost/test" pnpm nuxi prepare

# Check .nuxt/hub/db.mjs - now includes mode: 'default'
cat .nuxt/hub/db.mjs

The -fixed folder includes a pnpm patch with the fix.

Other solutions:

  • We could create a discriminated type so that the new type only appears for mysql, but I think this might be overcomplicating things.
  • Alternatively, we could add a new dialect called planetscale, which is an alias for mysql with the required mode. However, this goes against the Drizzle config.

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vercel bot commented Dec 17, 2025

@onmax is attempting to deploy a commit to the NuxtLabs Team on Vercel.

A member of the Team first needs to authorize it.

@atinux atinux merged commit 7a30fd7 into nuxt-hub:main Dec 17, 2025
7 of 9 checks passed
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Successfully merging this pull request may close these issues.

[BUG] MySQL drizzle client missing 'mode' parameter causes "You need to specify mode" error

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@onmax @atinux